Method, software and system for multi-path fail-over recovery in sequential storage systems
US7281169B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2004 |
| Grant date | Oct 9, 2007 |
| Priority date | — |
| Expiry date | Apr 9, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/201
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method, software and system are disclosed for enabling multi-path error recovery of failed communicators with sequential storage device systems. In one embodiment, an information handling system (IHS) coupled to a sequential storage device via first and second communication paths is provided. Information exchanges between the IHS and the sequential storage device are monitored for communication path failure. In response to a failure event on a primary communication path, status of the halted information exchange is maintained by a host bus adapter and its supporting software on the IHS and in a fibre channel interface module of the sequential storage device. Status information regarding the halted information exchange is communicated to a fail-over host bus adapter of the IHS. The information exchange is completed on the fail-over communications path beginning from the point of failure such that data of the sequential information exchange is maintained in order.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.